src/ui/message_center/views/proportional_image_view.h

   1 // Copyright 2013 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #ifndef UI_MESSAGE_CENTER_VIEWS_PROPORTIONAL_IMAGE_VIEW_H_
   6 #define UI_MESSAGE_CENTER_VIEWS_PROPORTIONAL_IMAGE_VIEW_H_
   7
   8 #include "ui/gfx/image/image_skia.h"
   9 #include "ui/views/view.h"
  10
  11 namespace message_center {
  12
  13 // ProportionalImageViews center their images to preserve their proportion.
  14 class ProportionalImageView : public views::View {
  15  public:
  16   ProportionalImageView(const gfx::ImageSkia& image, const gfx::Size& max_size);
  17   ~ProportionalImageView() override;
  18
  19   // Overridden from views::View:
  20   gfx::Size GetPreferredSize() const override;
  21   int GetHeightForWidth(int width) const override;
  22   void OnPaint(gfx::Canvas* canvas) override;
  23
  24  private:
  25   gfx::Size GetImageDrawingSize();
  26
  27   gfx::ImageSkia image_;
  28   gfx::Size max_size_;
  29
  30   DISALLOW_COPY_AND_ASSIGN(ProportionalImageView);
  31 };
  32
  33 }  // namespace message_center
  34
  35 #endif // UI_MESSAGE_CENTER_VIEWS_PROPORTIONAL_IMAGE_VIEW_H_